Re: [jetty-users] Keep the sessions after a redeploy

[Filipe Sousa <natros@xxxxxxxxx>]

After much digging I finally managed to solve the problem. For those interested, here's the solution:

<Set name="lazyLoad">true</Set>

Apparently, version 6 does not require this parameter

On Wed, Dec 15, 2010 at 4:53 PM, Filipe Sousa <natros@xxxxxxxxx> wrote:

Hi,

I'm using embedded jetty 7.2.2 in a project and I need to redeploy without losing sessions. 

I'm using the following contents on file WEB-INF/jetty-web.xml. I am also using a realm for application security.

<Set name="sessionHandler">

<New class="org.eclipse.jetty.server.session.SessionHandler">

<Arg>

<New class="org.eclipse.jetty.server.session.HashSessionManager">

<Set name="storeDirectory">/tmp/jetty</Set>

</New>

</Arg>

</New>

</Set>

The redeploy is triggered when I touch a xml file in /contexts folder:

<?xml version="1.0"?>

<!DOCTYPE Configure PUBLIC "-//Jetty//Configure//EN" "http://www.eclipse.org/jetty/configure.dtd">

<Configure class="org.eclipse.jetty.webapp.WebAppContext">

<Set name="contextPath">/guia-ects</Set>

<Set name="resourceBase"><SystemProperty name="jetty.home" default="." />/WebContent</Set>

</Configure>

After doing a redeploy, I got a NullPointerException when accessing a protected URL. After tracing the error, I detected that the parameter user is null

MappedLoginService.class:

 public boolean validate(UserIdentity user)

    {

        if (_users.containsKey(user.getUserPrincipal().getName()))

            return true;

        

        if (loadUser(user.getUserPrincipal().getName())!=null)

            return true;

                

        return false;

    }

This is the code for running jetty7:

public class JettyServer {

private final String PATH = System.getProperty("user.dir");

private Server server;

private final ContextHandlerCollection handlers = new ContextHandlerCollection();

private DeploymentManager deploymentManager;

public JettyServer() {

System.setProperty("jetty.home", PATH);

System.setProperty("javax.net.ssl.trustStore", PATH + "/etc/keystore.jks");

System.setProperty("javax.net.ssl.trustStorePassword", "password");

createServer();

createDeploymentManager();

createContextProvider();

}

private void createContextProvider() {

ContextProvider provider = new ContextProvider();

provider.setMonitoredDirName(PATH + "/contexts");

provider.setScanInterval(1);

deploymentManager.addAppProvider(provider);

}

private void createDeploymentManager() {

deploymentManager = new DeploymentManager();

deploymentManager.setContexts(handlers);

server.addBean(deploymentManager);

}

private void createServer() {

server = new Server(8080);

server.setStopAtShutdown(true);

server.setHandler(handlers);

}

private void run() throws Exception {

server.start();

server.join();

}

public static void main(String[] args) throws Exception {

JettyServer server = new JettyServer();

server.run();

   }

}

I don't have this problem with Jetty 6.1.26. Is this a bug?

Thanks.

--
Filipe Sousa

-- 
Filipe Sousa